Screen attachment for windows



A. HAFTEL SCREEN ATTACHMENT Ton wmbows Filed April 5, 1927 t 9 w a a z m 9 7 a 1,2 I I 4 a 3 ow, 1 9 .T I H Feb. 21, 1928.

INVENTOR JZbrakam .l-lr ftel ATTORNEY Patented Feb. 21, 1928.

UNHTED STATES ABRAHAM I-IAFTEL, on NEW YORK, N. Y.

SCREEN ATTACHMENT FOR WINDOWS.

Application filed April 5,

My invention relates to a screen attachment for windows, particularly to an attachment adapted to be applied to the transverse rail of a sash and having means to detachably engage a fixed part of the window, with the result that the sash may be raised or lowered without the screen, or the screen be raised or lowered with a given sash to position the screen in the opening resulting from the raising or lowering of the window.

The general object of my invention is to provide a window attachment of the indi-' cated character improved in various particulars, especially with regard to the means for effecting engagement or disengagement between the sash rail and the screen and between a fixed part of the window and the screen.

The nature of my invention and its -distinguishing features and advantages will clearly appear as'the'description proceeds.

Reference is to be had to the accompany-. ing drawings forming a part of this specification, it being understood that the drawings are merely illustrative of oneexample of the invention. I

Figure 1 is a front elevation of a window equipped with my improved attachment.

Figure 2 is an enlarged detail in transverse vertioal section, as indicated by the for effecting closure of the spaces between line 22 of Figure 1.

Figure 3 is a vertical section indicated by the line 3--3 of Figure 1.

Figure 4 is a horizontal section on an enlarged scale as indicated by the line 44 of Fig. 1.

Figure 5 is a detail in front elevation showing a fragment of the lower sash provided with a plate to be hereinafter referred to. I

In the drawing the letter A indicatesa window frame and a sliding sash-es. The numeral indicates generally the screen, and 11 a plate applied to the lower rail of a sash a. Said plate 11 has an opening 12, said opening being near one end of said plate 11, said plate being formed with a second opening 13 spaced from the first mentioned opening. The transverse rail of the sash a is formed with recesses behind the plate 11, the one recess being designated 14 and the other recess 15.

' .18 formed with a vertical slot 19 therein.

Winding means for the screen 10 is en closed by a casing 16 havlng a vertical flange 1927. Serial No. 181,139.

locking element 20 is fastened to thecasing 16 at the rear side, and has a hooked terminal 21 adapted to be passed through the opening 13 to be accommodated in the recess 15. Similarly, a fastening element 22 is provided above the element 20, and has a hooked terminal. 23 to be passed through the opening 12 and its terminal accommodated in the recess 14. A stud 24 extends upwardly at an edge of casing 16 and receives a suitable nut 124 for tightly clamping or loosening the fastening element 22. The arrangement described provides for detachably' engaging the hooks 21, 23, with the sash a and plate 11, whereby to provide for readily attaching the casing 16.-' Suitable screen winding means is provided, there being shown a spring roller 25 of known form, and turning in the casing 16. On spring roller 25 winds the screen 10, and said screen is provided with an-edge bar 28 having a rounded hollow bead 29 receiving bolts 30. Said bolts 30 have connected with their adjacent ends links 31, the links at their opposite ends being secured to a lever 32 fulcrumed on brackets 33, on the said strip 28 of the screen. By moving the lever 32 the bolts 30 may be projected laterally to engage in recesses 34 formed in the inner stops 35 of the window frame. The numeral 36 indicates weathering strips or gap strips the screen 10 and the sides of the window frame at the beads 35.

By the described arrangement, the screen may be readily applied to the transverse rail of the sash a; by engaging in succession the fastening elements 20 and 22 in the manner previously described. When it is desired to cause the screen to cover the opening beneath the lower sash a, for example, the lever .32 is operated to throw the bolts 30 into engagement with the stops 35, whereby as thesash'is raised and with it the casing 16 and winding roller 25, the screen 10 will unwind from said roller, the strip 28 remaining stationary and held to the stop beads 35at the bottom. (See Figure 1.) To remove the screen attachment, the bolts 30 are withdrawn out of engagement with the stops 35, and fastener elements 20, 22, are disengaged from the sash a whereby casing 16 may be removed with the roller 25 having the screen 10 wound thereon and the bottom strip 28 of the screen adjacent said casing, as shown in Figure 2. 1

I would state furthermore that While the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the exact details herein'illustrated, since, manifestly, the same can be ed to engage the sash rail, and a laterally disposed hooked element adapted also to engage the sash rail.

2. In a screen attachment for windows, a casing adapted to receive a screen-Winding roller, land means on the casing to detachably secure the same to a sash rail, said means comoiisin a'verticall dis osed hook adapted to engage the sash rail, anda latenally disposed hooked element adapted also to.

engage the sash rail,together with means to hold the last mentioned element in fixed position or movable relatively to said casing.

ABRAHAM HAFTEL. 

